Company lists · Data refreshed September 2026

Top 25 Customer retention software companies based in the United Kingdom

Name: Customer retention software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 154 companies tracked

RevenueBase identified 154 customer retention software companies headquartered in the United Kingdom as of September 2026 and tracks 6,746 professional contacts across them, including 3,342 with verified work emails and 1,765 with mobile numbers. London is the largest hub.

This list covers customer retention software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

154Companies

6,746Contacts tracked

3,342Verified emails

1,765Mobile numbers

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The 25 largest customer retention software companies based in the United Kingdom

Ranked by team size

Top 25 of 154 customer retention software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to customer retention software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	BRAZE	Partial evidence	London, United Kingdom	1,001-5,000	2,133 contacts →
	Partial evidence “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Source: RevenueBase Database · checked Sep 1, 2026
2	TLC Worldwide	Partial evidence	London, United Kingdom	201-500	986 contacts →
	Partial evidence “TLC Worldwide is a global leader in customer engagement, loyalty, and reward solutions.” Source: RevenueBase Database · checked Sep 1, 2026
3	Iterable	Partial evidence	London, United Kingdom	501-1,000	766 contacts →
	Partial evidence “Iterable is the AI customer engagement platform built for enterprise scale, loved by teams, and trusted by global brands like Priceline, Fabletics, Blockchain, and Box.” Source: RevenueBase Database · checked Sep 1, 2026
4	On24	Indirect evidence	London, United Kingdom	501-1,000	623 contacts →
	Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 1, 2026
5	Jade Software Corporation	Strong evidence	United Kingdom	201-500	356 contacts →
	Strong evidence “We combine the power of People, Data, and Software to deliver unrivalled customer experiences.” Source: RevenueBase Database · checked Sep 1, 2026
6	Sagacity	Indirect evidence	London, United Kingdom	51-200	148 contacts →
	Indirect evidence “Sagacity are the data intelligence people.” Source: RevenueBase Database · checked Sep 1, 2026
7	Ometria	Partial evidence	London, United Kingdom	51-200	135 contacts →
	Partial evidence “Ometria is the first and only customer data experience platform (CDXP) built for retail brands.” Source: RevenueBase Database · checked Sep 1, 2026
8	Kognitiv Corporation	Indirect evidence	London, United Kingdom	201-500	115 contacts →
	Indirect evidence “Kognitiv, now part of Capillary Technologies, redefines loyalty by helping brands securely and efficiently activate their data to engage new audiences and deepen relationships…” Source: RevenueBase Database · checked Sep 1, 2026
9	Antavo AI Loyalty Cloud	Partial evidence	London, United Kingdom	51-200	113 contacts →
	Partial evidence “Antavo offers the market's most advanced AI-powered customer loyalty platform, streamlining the entire loyalty program lifecycle.” Source: RevenueBase Database · checked Sep 1, 2026
10	Spotler UK	Indirect evidence	Guildford, United Kingdom	51-200	84 contacts →
	Indirect evidence “We are Spotler!” Source: RevenueBase Database · checked Sep 1, 2026
11	HTK An ITA Group Company	Partial evidence	Ipswich, United Kingdom	11-50	75 contacts →
	Partial evidence “HTK is a leading cloud-based (SaaS) software-as-a-service provider, offering innovative data insights, machine learning and loyalty marketing solutions.” Source: RevenueBase Database · checked Sep 1, 2026
12	Netmera	Partial evidence	United Kingdom	51-200	57 contacts →
	Partial evidence “Netmera unifies customer data and AI-powered omnichannel engagement in a single platform.” Source: RevenueBase Database · checked Sep 1, 2026
13	PLINC	Indirect evidence	London, United Kingdom	51-200	56 contacts →
	Indirect evidence “Plinc helps brands turn first-party data into competitive advantage.” Source: RevenueBase Database · checked Sep 1, 2026
14	Bidnamic	Indirect evidence	Leeds, United Kingdom	51-200	53 contacts →
	Indirect evidence “Here at Bidnamic we help market-leading ecommerce retailers scale their business in the most efficient way, using technology to master purchase intent.” Source: RevenueBase Database · checked Sep 1, 2026
15	Engage HUB	Partial evidence	London, United Kingdom	51-200	48 contacts →
	Partial evidence “Every customer is unique.” Source: RevenueBase Database · checked Sep 1, 2026
16	Kaizen Loyalty	Indirect evidence	London, United Kingdom	11-50	45 contacts →
	Indirect evidence “Kai"(change) and "Zen"(good), translating to "change for better" or "continuous improvement." At Kaizen Technology, our name is more than just a brand name, it's a reflection of…” Source: RevenueBase Database · checked Sep 1, 2026
17	Countly	Partial evidence	London, United Kingdom	51-200	40 contacts →
	Partial evidence “Countly is a first-party digital analytics and customer engagement platform that gives organizations complete ownership of their data and product intelligence - across every…” Source: RevenueBase Database · checked Sep 1, 2026
18	Rapier AI Analytics	Partial evidence	London, United Kingdom	11-50	39 contacts →
	Partial evidence “We are Rapier, a leading AI customer growth platform with a strong focus on transforming first-party customer data into business growth.” Source: RevenueBase Database · checked Sep 1, 2026
19	Ecrebo	Partial evidence	Reading, United Kingdom	51-200	35 contacts →
	Partial evidence “At Ecrebo, we empower retailers with innovative technologies that drive customer loyalty, increase revenue, and elevate brand experiences.” Source: RevenueBase Database · checked Sep 1, 2026
20	Lumata	Strong evidence	London, United Kingdom	201-500	33 contacts →
	Strong evidence “Lumata is the leading global provider of real-time customer lifecycle management, advertising, and data monetisation software and services.” Source: RevenueBase Database · checked Sep 1, 2026
21	Rocket	Indirect evidence	Brighton, United Kingdom	51-200	25 contacts →
	Indirect evidence “Boost your business’ loyalty and rewards offering by partnering with Rocket today!” Source: RevenueBase Database · checked Sep 1, 2026
22	For-Sight	Indirect evidence	Edinburgh, United Kingdom	11-50	23 contacts →
	Indirect evidence “For-Sight is a Hotel CRM & Marketing Platform designed to help you gain a clear picture and a better understanding of who your guests are and what they really want.” Source: RevenueBase Database · checked Sep 1, 2026
23	Cloudinteract	Partial evidence	London, United Kingdom	11-50	19 contacts →
	Partial evidence “We build customer experience platforms and unlock your data to make customer interactions your competitive advantage.” Source: RevenueBase Database · checked Sep 1, 2026
24	Zzgtech	Partial evidence	London, United Kingdom	11-50	18 contacts →
	Partial evidence “ZZGTech builds secure and scalable infrastructure for modern marketing and customer communication.” Source: RevenueBase Database · checked Sep 1, 2026
25	Campaigner	Partial evidence	North Shields, United Kingdom	51-200	16 contacts →
	Partial evidence “Campaigner helps marketers unlock the power of their customer data to create personalized, 1:1 interactions that drive incremental revenue, engagement, and increased customer…” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: customer retention software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names customer retention software companies.
Partial evidence: Its own public description names part of customer retention software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer retention software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 154 customer retention software companies based in the United Kingdom

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Customer retention software companies based in the United Kingdom at a glance

As of Sep 1, 2026

49.5%Verified-email coverage

26.2%Mobile-number coverage

43.8Average contacts per company

11-50Median size (employees)

58.4%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among customer retention software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “customer retention software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names customer retention software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among customer retention software companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 3,342 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Customer retention software companies by metro

Customer retention software companies in London90

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names customer retention software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many customer retention software companies are there based in the United Kingdom?

RevenueBase identified 154 customer retention software companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

BRAZE, headquartered in London, tops this list with the largest team on record.

Which city has the most customer retention software companies?

London leads with 90 headquartered companies, followed by Manchester (4) and Belfast (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,342 verified decision-maker contacts tracked across these 154 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.